This story is the sequel to the thrilling tale of 'Star-City of Pluto', in which the wonderful trio of Bobby, Sandra and Vermilion travelled all over the universe, and began the establishment of their space metropolis. Now they are having even more unbelievable adventures and escapades, as they go to the ancient Earth as it was in 50,000 BCE. What they hope will be a quick fun trip to get some plants for a space garden turns out to be a totally seismic and dangerous and tempestuous series of experiences, which they only escape from through the most amazing strokes of luck. Read about barbaric and brutal primitive humans, bizarre rituals, violent storms, tall wind-swept mountains, man-eating tigers, beautiful glow-worm caves, dinosaur mysteries, and much, much more.